Therapeutic lamp.



R. e. LEDIG. .THEBAPEUIIC LAMP.

APPLICATION FILED MAR. 31. 19]?- Patentefl Feb. 5, 19M

2 SHEETS-SHEET I.

R. G. LEDIG. ll'lERAPEUTIG LAMP. APPLICATION FILED mAR.3|; 1911.

Patented Feb. 5,1918.

2 SHEETS-SHEET 2 ATTORNEYS RICHARD G. LEIDIG, 0F PHILADELPHIA,PENNSYLVANIA.

THERAPEUTIC LAMP.

To all whom it may concern.-

Be it known that I,-.RICHARD G. LEDIG, a citizen of the United States,residing in the city and county of Philadelphia, State of Pennsylvania,have invented a new and useful Therapeutic Lamp, of which the followingis a specification.

My invention consists of an electric lamp which is provided with a hoodor shade of the form of a parabolic conoid with an interior reflectingsurface which serves to project the heat of the lamp from the hood in ahigh degree for effective therapeutic treatment of the human body whererequired, while the light of the lamp is etliciently refiected from thehood.

It consists also in providing the device on the side thereof with ahandle which admits of the convenient and effective manipulation of thedevice in directing the heat to the portion of the body to be treatedwith the same, and the regulation of the heat to a greater or lessextent at the place of service.

It consists also of details of construction as will be hereinafter setforth.

The invention is satisfactorily illustrated in the accompanying drawing,but the important instrumentalities thereof may he varied, and so it isto be understood that the invention is not limited to the specificdetails shown and described.

Figure 1 represents a central longitudinal section of an electrictherapeutic and light ing lamp embodying my invention.

Fig. 2 represents a top or plan view thereof on a reduced scale.

Fig. 3 represents a side tionthereof on the scale Fig. 2.

Fig. 4 represents a side elevation of the switch plug and appurtenancesthereof.

7 Fig. 5 represents a top plan view thereof.

Fig. 6 represents a transverse section of a portion on the line 6-6 Fig.3.

Fig. 7 represents a central section of the cap of the lamp socket.

Fig. 8 represents a transverse section on the line 88 Fig. 7.

Similar numerals of reference indicate corresponding parts in thefigures.

Referring to the drawings,

1 designates an incandescent electric lamp, and 2 designates a hood inwhich said lamp is sustained and secured by the threaded neck 3 and thethreaded sleeve 1 on the switch plug 5, the latter being contained inthe lamp socket 6, said sleeve 4 being a mem- Specification of LettersPatent.

Application filed March 31, 1917.

elevation of a por-' Patented Feb. 5, 191%. Serial N 0. 158,786.

ber of said socket, which features of themselves are well known.

The hood is of the form of a. parabolic conoid widening in its curvedcontour from the neck of said hood to the open end of the same, and hasits interior surface 7 of a highly reflecting material or nature, itbeing noticed that the bulb portion of the lamp 1 is contained entirelyin the hood 2, whereby heat from the lamp is reflected to the fullestextent from the hood for therapeutic purposes, the same being true ofthe light from the lamp for illuminating purposes.

' In the side of the neck of the hood adjacent to the neck of the lamp 1are the vents 8 which open into the interior of said socket so as toserve as exits for the heated air.

9 designates the electric wire or conductor, the same passing throughthe handle 10 of the device, the handle being formed of rubber, wood, orother suitable material, it being secured to the side of the socket 6,said conductor having its terminals in the latter divided, the divisionsbeing secured to the binding screws 11 on the plug 5, the portion of thelatter adjacent to said screws having therein the recess 12 to have theportion of the conductor 9 seated close thereon, it now being seen thatby proper manipulation of the key 13 on the plug 5, the current may beturned on to energize the lamp and cut off from the lamp to extinguishthe same, as usual in such cases.

Within the socket is the insulator 14: of tubular form inclosingadjacent members for evident purposes, the same having in its side theopening 15 for the passage therethrough of the adjacent portion of theconductor 9.

l6 designates a cap which is fitted upon the upper end of the socket toclose the same, it having on its upper or outer end which is tubular,the shank of a ring or loop 17 by which the device may be hung upon ahook, etc., or suspended from a stand or some other desirable place.

In order to connect the cap tightly with the socket, and vice versa, theupper end of the socket is corrugated or toothed as at 18, and the lowerend of the cap has therein a reinforcing piece which has openings 19 atintervals, the corrugations 18 being adapted to enter said depression,thus interlocking the cap with the socket, but admitting-of thedisconnection of the same when superior force is applied one to theother. The upper 7 ring in sald portion, as most portion of the socketis split or slotted as in Fig. 3, so as to render the same resllient andcause the cap to contract the same for more tightly holding the cap inposition on the socket.

In order to retain the hanger or suspension ring 17 on the cap there isemployed the screw 20 which is passed through the side of the topportion of said cap and adapted to tighten against thescrew shank of theplainly shown in Figs. 1 and 7.

Attention is directed to the fact that the device may be mostconveniently manipulated and directed to a required spot for therapeuticpurposes, or even lighting purposes, by means of the handle 10 which ismade hollow to allow the conductor to pass through the same to and untothe socket 6, said handle being adapted to be gripped conveniently andfirmly by the hand of the operator.

In order to connect said handle reliably with the socket its inner endis adapted to be screwed into the sleeve 21 through which the conductorpasses on its Way into the socket, said sleeve having on its inner endthe threaded nipple 22 which is adapted to be screwed into the tubularboss 23 on the side of the socket, thus forming a firm connection of thehandle with the socket, and consequently with the hood, said handlebeing however removable from the socket whereby it may be folded withthe exterior portions of the conductor on the hood and form a compactbundle, convenient for packing, storing, transportation, etc., it beingnoticed that when the handle is removed from the boss 23, it may slipover the conductor 9 without disturbing the latter or dismembering thesame, allowing said handle and conductor to be folded on the hood, asabove stated.

Having thus described my invention I claim as new and desire to secureby ters Patent, is

1. In an electric therapeutic lamp, a hood, the latter being providedwith a socket, a boss extending from said socket, a handle connectedwith said boss and extending laterally therefrom, said handle and bossbeing tubular, and a current conductor which is passed through saidtubular handle and boss into said socket and connectible with thebinding devices of the switch plug of the lamp.

2. In a therapeutic lamp, the combination of a socket, a tubular,interiorly-threaded boss attached to and extending laterally from thesocket, a tubular handle exteriorly threaded at its inner end anddisposed laterwhat Letally to the socket and in alinement with saidboss, a conductor extending through the handle and boss and into thesocket, and a sleeve interposed between the handle and the boss andhaving a reduced and exteriorly threaded portion arranged in anddetachably engaged with the boss and also having a comparatively largeouter and interiorly threaded portion receiving the inner end of thehandle; the handle and sleeve being adapted when the latter isdisconnected from the boss to be folded with the conductor therein onthe adjacent portion of the lamp.

3. In a therapeutic lamp, the combination of a socket, a conductorextending from the interior of the socket through an aperture in theside thereof and laterally from the socket, and a tubular handlereceiving the conductor and disposed laterally to and detachablyconnected with the socket; said handle and conductor being constructedand arranged when the former is disconnected from the socket to befolded on the adjacent portion of the lamp.

t. In a therapeutic lamp, the combination of a socket having an aperturein its side, a switch plug disposed in said socket and havin a recess inits side and coincident with said aperture and also having binding postson one end to which said recess extends, a conductor extending throughsaid aperture and having branches disposed in said recess and connectedto said binding posts, and a tubular handle disposed laterally to andconnected with the socket and resocket, a tubular handle disposedlaterally from said boss and attachable thereto, a conductor extendingthrough said handle and boss and into said socket, and a sleeveinterposed between the handle and said boss and bein adapted to connectthe latter named mem ers.

6. In an electric therapeutic lamp, a hood, the latter being providedwith a socket, a boss extending from said socket, a handle connectedwith said boss and extending laterally therefrom, said handle and bossbeing tubular, and the handle detachable from the boss and adapted to befolded on the adja cent portion of the lamp, and a current conductorwhich is passed through said handle and boss and into said socket andconnected with the switch plug of the lamp.

RICHARD G. LEDIG. Witnesses:

JOHN A. Wrnnnnsnnmr, N. Bossmonn.

